Excavator



FIG. 1 is a front view of an excavator embodying my novel design;

FIG. 2 is a rear view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side slightly inclined perspective view thereof;

FIG. 5 is a top perspective view thereof;

FIG. 6 is a right side perspective view taken from the front with a lever in an upright position thereof; and,

FIG. 7 is a left side perspective view taken from the front thereof.

The broken line showing of the support block seen underneath the cab of the excavator in FIGS. 1-7 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for an excavator, as shown and described. 